1. Don’t write anything yet….
The Bellwork is on your notes I’m going to hand out…..

2. Bellwork: Tues. April 26, 2016
Can you answer these questions on your notes handout?
Kingdom in which all vertebrates are classified: _______________________
Phylum in which all vertebrates are classified: ________________________
Subphylum in which all vertebrates are classified: ________________________

3. ALL VERTEBRATES BELONG TO THESE CATEGORIES:
KINGDOM ANIMALIA
PHYLUM CHORDATA
SUBPHYLUM VERTEBRATA

4. First, another invertebrate:
Now the start of the vertebrates:

5. Have a backbone
bilateral symmetry
coelomate animals that have endoskeleton
closed circulatory system (veins, arteries)
efficient respiratory system
complex brain and nervous system

6. Fish: 3 types 1.Jawless (ex.-Lamprey, hagfish)
2.Cartlaginous Fishes(ex.-shark)
3.Bony Fishes(ex.-tuna, jack)
Ectotherms- body temperature is dependent on the surroundings.
2 chambered heart
Have gills

7. Lampreys, jawless fish closely related to the first vertebrates, possess 41 types of a little-known genetic regulator called microRNA. Some biologists say microRNA answers the mystery of how backbones evolved. Read More overies/news/2008/02/micro_rna#i xzz0neSEF176

8. Amphibians: “DOUBLE-LIFE”
Frogs, Toads, Salamanders.
As adults, live on land, but rely on water for breeding and egg development.
All go through metamorphosis, in which the young gradually lose their tails and gills and develop legs, lungs, and other adult structures.
Ectotherms- body temperature is
dependent on the surroundings.
3 chambered heart

9. caecilians type of amphibians that superficially resemble earthworms or snakes. They mostly live hidden in the ground, which makes them one of the least known orders of amphibians. All extant caecilians and their closest fossil relatives are grouped as the clade Apoda.

10. Reptiles snakes, lizards, turtles, crocodiles and alligators.
Ectotherms- body temperature is
dependent on the surroundings.
Most have 3 chambered heart, but crocodiles have a 4 chambered heart.
Have lungs
scaly skin reduces loss of body moisture on land.
Have amniotic egg- embryo in amniotic fluid.

11. Birds Have feathers. Forelimbs modified into wings.
Have amniotic egg- embryo in amniotic fluid.
Incubate eggs in nests.
Endotherms-animals that maintain a constant body temperature.
Have thin hollow bones enabling flight.
Have lungs. Air flows in one direction

12. Mammals 3 Types of Mammals Humans, Dogs, Cats, Kangaroo etc.
Endotherms-animals that maintain
a constant body temperature.
4 chambered heart
Have mammary glands
Have lungs
Have hair for insulation
3 Types of Mammals

13. 3 Types of Mammals
Monotremes- lay eggs (example- platypus)
Marsupials- young develop in pouch of mother.(example-kangaroo, koala)
Placental-carry young inside the uterus until development is nearly complete. (example-humans,
dogs, cats)

14. Bellwork: Wed. May 11, 2011
Characteristics that birds and mammals share:
2. 3 major differences between
birds and reptiles:

15. Bellwork: Wed. April 27, 2016 About Phylum Mollusca:
1. Octopuses and Squids are__________________ hint think “head foot” look in your notes!
2. Snails and slugs are__________________ hint think “stomach foot” look in your notes!
Clams and scallops are_________________
hint think “two shells” look in your notes!

16. http://boingboing.net/2010/07/27/octopuses-octopi- oct.html

17. Baby kangaroo birth
re=related